is there any alternative to the name server ..?

there are several ways to connect the domain, the server ehcp ..?, in addition to the nameserver ..?
I have domain.com and then I point to http://freedns.afraid.org, then in http://freedns.afraid.org I configure my domain.com to point to my ehcp server.
domain.com redirect my way to my ehcp server ip.
is there any other way than to use a domain name server to dial into the server ehcp ..?
sorry my bad english